I really like this story. The Queen’s character is interesting, and (at least until the last section) reminded me that, even if it’s not true for a lot of Glowfic templates, power does corrupt for a lot of people.

This line also made me look forward to the Effulgence arc or other Queen-Promise interaction more than before:

She can command her fairies not to lie, she can even command them to spend hours introspecting. But she cannot guarantee that their answers will be right.

I fear the canon means by which Promise gets away from Yellow might not be as nice for her as the one we’ve seen in sandboxen.

You’ve said a few times that there is just one fairy of the Queen’s kind. Presumably before the start of this story, there were zero. How often do new kinds just appear, and would the Fairlyland residents have any way to be sure that there is just one of her kind and always will be?